FR2412346A1 - Particules en polyurethanne-polyurees, qui resistent bien a la pression et qui conviennent pour l'encapsulation de matieres actives - Google Patents

Particules en polyurethanne-polyurees, qui resistent bien a la pression et qui conviennent pour l'encapsulation de matieres actives

Info

Publication number
FR2412346A1
FR2412346A1 FR7835927A FR7835927A FR2412346A1 FR 2412346 A1 FR2412346 A1 FR 2412346A1 FR 7835927 A FR7835927 A FR 7835927A FR 7835927 A FR7835927 A FR 7835927A FR 2412346 A1 FR2412346 A1 FR 2412346A1
Authority
FR
France
Prior art keywords
polyurous
encapsulation
polyurethane
particles
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7835927A
Other languages
English (en)
Other versions
FR2412346B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of FR2412346A1 publication Critical patent/FR2412346A1/fr
Application granted granted Critical
Publication of FR2412346B1 publication Critical patent/FR2412346B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
    • A01N25/28—Microcapsules or nanocapsules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/14—Polymerisation; cross-linking
    • B01J13/16—Interfacial polymerisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S528/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S528/902—Particulate material prepared from an isocyanate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Dispersion Chemistry (AREA)
  • Plant Pathology (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Colloid Chemistry (AREA)

Abstract

PARTICULES DE POLYURETHANNE-POLYUREES AYANT UNE BONNE RESISTANCE A LA PRESSION. ELLES ONT UNE MASSE INTERNE STRUCTUREE. ON LES FABRIQUE A PARTIR D'UNE PHASE LIQUIDE NON MISCIBLE A L'EAU QUI CONTIENT DES SOLVANTS ORGANIQUES, DES ISOCYANATO-PREPOLYMERES ET, EVENTUELLEMENT, UNE MATIERE ACTIVE, PAR EXEMPLE UN PESTICIDE, PAR DISPERSION DANS UNE PHASE AQUEUSE. LA PHASE ORGANIQUE CONTIENT, COMME ISOCYANATO-PREPOLYMERES, DES PRODUITS DE REACTION DE POLYOLS AVEC UN EXCES DE POLY-ISOCYANATES ALIPHATIQUES, AROMATIQUES, CYCLOALIPHATIQUES OU ARALIPHATIQUES, AINSI QU'UN ACETATE D'ALKYLE OU D'ALCOXY-ALKYLE. LA PHASE AQUEUSE CONTIENT UN COLLOIDE PROTECTEUR ET, EVENTUELLEMENT, UN SURFACTIF. APPLICATION A LA MICRO-ENCAPSULATION DE COMPOSES TRES DIVERS, SURTOUT DE PRODUITS PHYTOSANITAIRES.
FR7835927A 1977-12-21 1978-12-21 Particules en polyurethanne-polyurees, qui resistent bien a la pression et qui conviennent pour l'encapsulation de matieres actives Expired FR2412346B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2757017A DE2757017C3 (de) 1977-12-21 1977-12-21 Verfahren zum Herstellen von druckbeständigen Polyurethan-Polyharnstoff-Kapseln mit strukturierter Innenmasse

Publications (2)

Publication Number Publication Date
FR2412346A1 true FR2412346A1 (fr) 1979-07-20
FR2412346B1 FR2412346B1 (fr) 1986-05-09

Family

ID=6026744

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7835927A Expired FR2412346B1 (fr) 1977-12-21 1978-12-21 Particules en polyurethanne-polyurees, qui resistent bien a la pression et qui conviennent pour l'encapsulation de matieres actives

Country Status (26)

Country Link
US (1) US4230809A (fr)
JP (1) JPS5491591A (fr)
AR (1) AR219360A1 (fr)
AT (1) AT375026B (fr)
AU (1) AU526316B2 (fr)
BE (1) BE872950A (fr)
BR (1) BR7808310A (fr)
CA (1) CA1136797A (fr)
CH (1) CH641376A5 (fr)
CS (1) CS213368B2 (fr)
DD (1) DD141032A5 (fr)
DE (1) DE2757017C3 (fr)
ES (1) ES476060A1 (fr)
FR (1) FR2412346B1 (fr)
GB (1) GB2011923B (fr)
HU (1) HU180473B (fr)
IL (1) IL56252A (fr)
IN (1) IN149643B (fr)
IT (1) IT1102404B (fr)
MX (1) MX5742E (fr)
NL (1) NL188509C (fr)
PH (1) PH17560A (fr)
PT (1) PT68957A (fr)
SU (1) SU1194259A3 (fr)
TR (1) TR20464A (fr)
ZA (1) ZA787146B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088566A2 (fr) * 1982-03-09 1983-09-14 Konica Corporation Toner en forme de microcapsules
EP0537467A1 (fr) * 1991-09-16 1993-04-21 Bayer Ag Microcapsules à partir d'isocyanates avec des groupes contenant des oxydes de polyéthylène
EP0686425A1 (fr) * 1993-12-28 1995-12-13 Sansui Co., Ltd. Procede de production d'une microcapsule d'un medicament hydrophobe

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2312059A1 (de) * 1972-03-15 1973-09-20 Stauffer Chemical Co Verfahren zum einkapseln mit wasser nicht mischbarer stoffe
JPS55130909A (en) * 1979-03-31 1980-10-11 Agency Of Ind Science & Technol Granular material containing active substance and having inactive surface-protecting layer, and its preparation
DE3020781C2 (de) * 1980-05-31 1982-11-18 Hoechst Ag, 6000 Frankfurt Druckbeständige Mikrokapseln mit einer Polyamid-Außenhülle und einer durch Polyurethan-Polyharnstoff oder Polyharnstoff strukturierten Innenmasse und Verfahren zu ihrer Herstellung
US4380034A (en) * 1980-09-26 1983-04-12 Magnetic Peripherals Inc. Track centering servo pulse noise filter
DE3333654A1 (de) * 1983-09-17 1985-03-28 Cassella Ag, 6000 Frankfurt Verkapselte, in wasser schwerloesliche salze, ihre herstellung und ihre verwendung
DE3685920D1 (de) * 1985-09-13 1992-08-13 Ciba Geigy Ag Verfahren zur herstellung von mikrokapseln.
EP0281521B1 (fr) * 1987-03-06 1992-07-08 Ciba-Geigy Ag Compositions herbicides
ES2048325T3 (es) * 1989-01-18 1994-03-16 Bayer Ag Granulados vehiculos que contienen substancias activas liquidas y solidas.
US5562914A (en) * 1990-12-06 1996-10-08 Zeneca Inc. Impregnated porous granules and a polyurethane matrix held within the pores thereof and holding a liquid material for controlled release of liquid material and process therefor
JPH04115178U (ja) * 1991-03-27 1992-10-12 三和シヤツター工業株式会社 ドアパネルのコーナーパツト
KR100313589B1 (ko) * 1993-02-09 2002-11-29 노바티스 아게 미세캡슐의 제조방법
IL108835A (en) * 1994-03-03 1997-08-14 Ben Researchiversity Of The Ne Microencapsulated composition containing chlorpyrifos or endosulfan
DE19646880A1 (de) 1996-11-13 1998-05-14 Hoechst Schering Agrevo Gmbh Endosulfan-Mikrokapseldispersion
US6153657A (en) * 1997-06-02 2000-11-28 Hodogaya Chemical Co., Ltd. Process for producing a solvent-less O/W type emulsion
PL195763B1 (pl) * 1997-06-30 2007-10-31 Monsanto Technology Llc Kompozycja do kontrolowanego uwalniania zapewniająca środek grzybobójczy roślinie i sposób wytwarzania kompozycji
DE19947147A1 (de) * 1999-10-01 2001-04-05 Bayer Ag Mikrokapseln
US6365189B1 (en) 1999-10-22 2002-04-02 3M Innovative Properties Company Method of delivering and releasing a pheromone
DE10022989A1 (de) * 2000-05-11 2001-11-22 Aventis Cropscience Gmbh Kombinationen von Pflanzenschutzmitteln mit organischen oder anorganischen Trägermaterialien
US7442410B2 (en) * 2002-12-24 2008-10-28 Nano-Sports Technologies Ltd. Method for encapsulating phase transitional paraffin compounds using melamine-formaldehyde and microcapsule resulting therefrom
GB0501030D0 (en) * 2005-01-19 2005-02-23 Central Science Lab The Formulation
DE102006015940A1 (de) * 2006-04-05 2007-10-11 Bayer Cropscience Ag Flüssige Formulierungen im Pflanzenschutz und deren Verwendung
FR2915750B1 (fr) * 2007-05-03 2011-05-06 Rhodia Recherches & Tech Melange a base de polyisocyanate et d'un solvant de type ether ester, emulsion aqueuse obtenue a partir de ce melange et utilisation de cette emulsion pour la fabrication de revetements et d'adhesifs
NZ594599A (en) * 2009-03-04 2014-02-28 Dow Agrosciences Llc Microencapsulated insecticide with enhanced residual activity
KR101703374B1 (ko) 2009-10-09 2017-02-06 산 노프코 가부시키가이샤 소포제

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3577515A (en) * 1963-12-13 1971-05-04 Pennwalt Corp Encapsulation by interfacial polycondensation
US3402149A (en) * 1964-12-04 1968-09-17 Thiokol Chemical Corp Process for preparing polyureapolyurethane molding powders
US3651182A (en) * 1969-04-24 1972-03-21 Daniel Rosenthal Method of making multicellular thermoset foamed plastic beads
CA953166A (en) * 1970-03-12 1974-08-20 Stanley B. Elliott Visual-type hygrometer
DE2119524A1 (de) * 1971-04-22 1972-10-26 Karl Alt Behälterbau-Apparatebau, 3100CeIIe Behälter
SE366051B (fr) * 1971-12-08 1974-04-08 Bofors Ab
DE2312059A1 (de) * 1972-03-15 1973-09-20 Stauffer Chemical Co Verfahren zum einkapseln mit wasser nicht mischbarer stoffe
DE2311712B2 (de) * 1973-03-09 1978-08-10 Bayer Ag, 5090 Leverkusen Verfahren zur Hersteilung von Mikrokapseln
US4032516A (en) * 1973-05-09 1977-06-28 Usm Corporation Method of making polyurethane powder
US3860565A (en) * 1973-10-01 1975-01-14 Minnesota Mining & Mfg Encapsulated isocyanurate catalyst
US4000218A (en) * 1973-12-03 1976-12-28 Union Carbide Corporation Process for preparing particulate polyurethane polymers and the polymers derived therefrom
DE2404538C2 (de) * 1974-01-31 1982-04-29 Bayer Ag, 5090 Leverkusen Herstellung von Polyharnstoffpulver
CA1040018A (fr) * 1974-06-19 1978-10-10 Dale R. Shackle Microcapsules d'hydroxypropylcellulose reticulee
US3963710A (en) * 1974-08-28 1976-06-15 E. I. Du Pont De Nemours And Company Finely divided blocked isocyanates prepared in the presence of surfactants
US4046741A (en) * 1976-02-17 1977-09-06 Stauffer Chemical Company Post-treatment of polyurea microcapsules
DE2617747C2 (de) * 1976-04-23 1982-07-01 Bayer Ag, 5090 Leverkusen Reaktionsdurchschreibepapiere

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088566A2 (fr) * 1982-03-09 1983-09-14 Konica Corporation Toner en forme de microcapsules
EP0088566A3 (fr) * 1982-03-09 1983-11-16 Konica Corporation Toner en forme de microcapsules
EP0537467A1 (fr) * 1991-09-16 1993-04-21 Bayer Ag Microcapsules à partir d'isocyanates avec des groupes contenant des oxydes de polyéthylène
US5342556A (en) * 1991-09-16 1994-08-30 Bayer Aktiengesellschaft Microcapsules made of isocyanates with groups containing polyethylene oxide
EP0686425A1 (fr) * 1993-12-28 1995-12-13 Sansui Co., Ltd. Procede de production d'une microcapsule d'un medicament hydrophobe
EP0686425A4 (fr) * 1993-12-28 1997-01-22 Sansui Kk Procede de production d'une microcapsule d'un medicament hydrophobe

Also Published As

Publication number Publication date
IN149643B (fr) 1982-02-27
PT68957A (en) 1979-01-01
ZA787146B (en) 1979-12-27
PH17560A (en) 1984-10-01
SU1194259A3 (ru) 1985-11-23
IT1102404B (it) 1985-10-07
JPS5491591A (en) 1979-07-20
AU4269778A (en) 1979-06-28
AR219360A1 (es) 1980-08-15
GB2011923A (en) 1979-07-18
IL56252A (en) 1982-05-31
BR7808310A (pt) 1979-08-07
JPS6358610B2 (fr) 1988-11-16
NL188509C (nl) 1992-07-16
CH641376A5 (de) 1984-02-29
AU526316B2 (en) 1983-01-06
DE2757017C3 (de) 1986-07-31
IL56252A0 (en) 1979-03-12
CA1136797A (fr) 1982-11-30
HU180473B (en) 1983-03-28
ATA905978A (de) 1983-11-15
DD141032A5 (de) 1980-04-09
CS213368B2 (en) 1982-04-09
NL7812378A (nl) 1979-06-25
US4230809A (en) 1980-10-28
DE2757017A1 (de) 1979-07-12
BE872950A (fr) 1979-06-21
AT375026B (de) 1984-06-25
GB2011923B (en) 1982-06-30
TR20464A (tr) 1981-07-01
IT7831007A0 (it) 1978-12-19
NL188509B (nl) 1992-02-17
MX5742E (es) 1984-02-09
DE2757017B2 (de) 1980-01-31
ES476060A1 (es) 1979-10-16
FR2412346B1 (fr) 1986-05-09

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Legal Events

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ST Notification of lapse